100-year-old marathoner Fauja, PETA's new poster boy

Just days after registering his name in the Guinness World Record as the oldest person to complete a marathon, 100-year-old Fauja Singh has now become the oldest man to star in a PETA ad campaign.

Singh, who made headlines around the world after completing the Toronto Waterfront Marathon on Sunday, has joined the ranks of celebrities such as Sir Paul McCartney and Alicia Silverstone by appearing in the "I Am a Vegetarian" ad series started by PETA (People for the Ethical Treatment of Animals) US.

The ad features him mid-stride and reads, "I am Fauja Singh, and I Am a Vegetarian. 100-Year-Young Marathon Runner and World Record holder".

Singh is part of a long list of celebrities, including Bryan Adams, Casey Affleck, Forest Whitaker, Shahid Kapoor, Lara Dutta and R Madhavan, who have teamed up with PETA India or its international affiliates to promote a vegetarian diet.

Singh, who rediscovered his passion for distance running at age of 81, credits his vegetarian diet for his stamina and longevity.